<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%--<%@ page import="com.webapp.entity.*"%>--%>
<%@ page import="java.util.*"%>
<%@ page import="javax.print.attribute.standard.Media" %>
<%--<%@ page import="javax.print.attribute.standard.Media" %>--%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title>视频列表</title>
    <link rel="stylesheet" type="text/css" href="skin/css/style.css" ></link>

    <script type="text/javascript" src="skin/js/jquery1.3.2.js"></script>
    <script type="text/javascript">
        $(function() {
            var sWidth = $("#focus").width(); //获取焦点图的宽度（显示面积）
            var len = $("#focus ul li").length; //获取焦点图个数
            var index = 0;
            var picTimer;

            //以下代码添加数字按钮和按钮后的半透明条，还有上一页、下一页两个按钮
            var btn = "<div class='btnBg'></div><div class='btn'>";
            for(var i=0; i < len; i++) {
                btn += "<span></span>";
            }
            btn += "</div><div class='preNext pre'></div><div class='preNext next'></div>";
            $("#focus").append(btn);
            $("#focus .btnBg").css("opacity",0.5);

            //为小按钮添加鼠标滑入事件，以显示相应的内容
            $("#focus .btn span").css("opacity",0.4).mouseenter(function() {
                index = $("#focus .btn span").index(this);
                showPics(index);
            }).eq(0).trigger("mouseenter");

            //上一页、下一页按钮透明度处理
            $("#focus .preNext").css("opacity",0.2).hover(function() {
                $(this).stop(true,false).animate({"opacity":"0.5"},300);
            },function() {
                $(this).stop(true,false).animate({"opacity":"0.2"},300);
            });

            //上一页按钮
            $("#focus .pre").click(function() {
                index -= 1;
                if(index == -1) {index = len - 1;}
                showPics(index);
            });

            //下一页按钮
            $("#focus .next").click(function() {
                index += 1;
                if(index == len) {index = 0;}
                showPics(index);
            });

            //本例为左右滚动，即所有li元素都是在同一排向左浮动，所以这里需要计算出外围ul元素的宽度
            $("#focus ul").css("width",sWidth * (len));

            //鼠标滑上焦点图时停止自动播放，滑出时开始自动播放
            $("#focus").hover(function() {
                clearInterval(picTimer);
            },function() {
                picTimer = setInterval(function() {
                    showPics(index);
                    index++;
                    if(index == len) {index = 0;}
                },4000); //此4000代表自动播放的间隔，单位：毫秒
            }).trigger("mouseleave");

            //显示图片函数，根据接收的index值显示相应的内容
            function showPics(index) { //普通切换
                var nowLeft = -index*sWidth; //根据index值计算ul元素的left值
                $("#focus ul").stop(true,false).animate({"left":nowLeft},300); //通过animate()调整ul元素滚动到计算出的position
                //$("#focus .btn span").removeClass("on").eq(index).addClass("on"); //为当前的按钮切换到选中的效果
                $("#focus .btn span").stop(true,false).animate({"opacity":"0.4"},300).eq(index).stop(true,false).animate({"opacity":"1"},300); //为当前的按钮切换到选中的效果
            }
        });

    </script>
</head>

<body>
<div class="wrapper">
    <h1>最新视频</h1>

    <div id="focus">
        <ul>
            <%
                List<Media> mediaList = (List<Media>)request.getAttribute("mediaList");
                if(mediaList.size()>0&&mediaList!=null){
                    for(int i=0; i<mediaList.size(); i++){
                        Media media = mediaList.get(i);
            %>
            <li><a href="play.action?id=<%=media.getName() %>"><img src="<%=basePath%><%=media.getCategory() %>" alt="" /></a></li>
            <%
                }
            }else{
            %>
            <li><h3 style="color:white;margin-left: 352px;margin-top: 130px;">没有记录</h3></li>
            <%
                }
            %>
        </ul>
    </div>

</div>
</body>
</html>